A Coal Port’s Long Goodbye
- Rating: Good Beach
- Terrain: Easy
- Level: Intermediate
- Dog friendly: Seasonal (dogs banned from main beach 1 May–30 September; Glen Beach unrestricted all year)
- Location: Saundersfoot, Pembrokeshire, South Wales
- Sat Nav: SA69 9EJ (Harbour Car Park)
- Common colours: Green, brown, white
- Rare colours: Cobalt Blue, Black, Lavender, Red
Best For:
- Harbour finds
- Historic sea glass
- Rock pool searching
- Well-tumbled glass
- Coastal walks
- Industrial history
- Dog-friendly hunting
- Exploring multiple beaches
Why Saundersfoot – a coal port hiding in plain sight
Saundersfoot doesn’t look like a sea glass beach. On a summer afternoon, with the harbour full of pleasure boats, the Blue Flag beach packed with families, and the village doing brisk trade in ice cream and kayak hire, it looks like exactly what it has spent the last eighty years becoming: a prosperous, well-run Pembrokeshire seaside resort.
But underneath all of that, Saundersfoot is a coal port. And it was a coal port for over a hundred years before it was ever a holiday destination. That matters, because coal ports mean harbours, harbours mean boats, boats mean provisions, and a century of provisions means glass in the water, in the sediment, in the sand and pebble beds that have been slowly sorting it into the frosted pieces that wash up today.
The village originally developed around the harbour, built to export anthracite from the local coalfield in the nineteenth century. The Saundersfoot Railway and Harbour Company built this harbour in 1829, with its primary purpose the transportation of anthracite coal from the surrounding mines. By 1837, there were five jetties handling coal, iron ore and pig iron from around the local area. Five jetties. A working industrial port, right here, on what is now a family beach with a harbour café.
The glass origin story at Saundersfoot is not a dramatic single event like Seaham’s bottle works or Morfa’s Victorian tip. It’s something quieter and longer, a century of working harbour life, domestic waste from the mining communities in the valley above, and a foreshore that has been concentrating material for generations.
The main beach is sandy, and the sandy centre is not where you hunt. The productive areas are at the harbour margins, the rocks and pebble sections to the north toward Coppet Hall, and particularly along Glen Beach south of the harbour.
One hunter walked Saundersfoot and began picking up pieces, then more and more, to the point of filling their hat. Twenty pieces of clear and green, including pieces with patterns on them. That is a Good Beach with a genuine story behind it.
What you’ll find here
Colours commonly found: Green, brown, white
Occasional finds: Blue, Aqua, Amber, Turquoise
Rare finds: Cobalt Blue, Black, Lavender, Red
Bonus: Sea pottery, Victorian ceramic shards, fragments of stoneware from the mining-era provisions trade, occasional smooth coal pieces worn to a near-glass finish by the sea
When to go
Low tide is essential, particularly at Saundersfoot. The harbour dries completely at low water, the stone walls and the foreshore around the harbour entrance become fully accessible, and the pebble patches that hold glass are only exposed on a decent low tide. Working the beach from two hours before low water gives you time to cover the harbour margins, the main beach strandline, and still make it along to Glen Beach or north toward Coppet Hall within the same tide window.
Post-storm is the prime timing. Saundersfoot faces east across Carmarthen Bay, and it’s easterly and southeasterly weather that does the work here, the kind of deep Atlantic low that swings through the Bristol Channel and kicks swell up the bay. After a night of east wind and decent waves, the strandline is freshly sorted, and new material is up on the beach. The best finds at Saundersfoot tend to come in the October-to-March window when easterly storms are most common, and the beach is least picked over.
Summer works for a family visit with opportunistic hunting, but the main beach is busy and heavily managed. For a dedicated glass hunt, autumn and winter are the right seasons. The Pembrokeshire coast in October, with your dog running ahead, and the bay to yourself, is not a bad alternative.
Today’s tide times & Sea Glass Score
Saundersfoot sits on the eastern shore of Carmarthen Bay, facing east across the bay with a spring tidal range of around 4 to 4.5 metres. It’s a more modest range than the huge tides of South Wales further east, but it’s enough to drain the harbour completely at low water and expose a generous section of foreshore, including the productive pebble and rock areas at the harbour margins. The east-facing aspect means easterly and southeasterly swells are onshore conditions, the ones that push material up the beach and refresh the strandline.
The widget below uses Tenby tide data (UKHO station), the nearest standard port for south Pembrokeshire, to show today’s Sea Glass Score, tide curve and best hunting window. Aim to arrive around ninety minutes before low water, walk the harbour margins first while the tide is still dropping, then work the strandline toward Coppet Hall as the beach opens fully.
Where to look on the beach
The harbour margins and drain as the harbour drains at low water, the pebble and rocky substrate around the base of the harbour walls becomes accessible. This is the most concentrated hunting ground at Saundersfoot. Work slowly around the harbour perimeter, checking pebble pockets and crevices at the base of the stone walls. The transition between the sandy harbour bottom and the harder rock edges is where pieces accumulate.
The main beach strandline, the central sandy section of the main beach, rarely holds glass in quantity, but the strandline after easterly weather is worth a careful walk. Look for the pebble clusters that form in the wrack line glass concentrates where pebbles do, and a freshly sorted strandline after a blow can produce surprising finds across the full beach width.
North toward Coppet Hall, the beach extends north of the main family area toward Coppet Hall Sands, accessed by walking along the strand at low tide or through the coastal path tunnel. The pebble and rocky sections in this direction are less trafficked than the main beach and tend to hold better-tumbled glass. The three tunnels on this section of the Wales Coast Path, the only tunnels on the entire 870-mile route, are the surviving infrastructure of the old colliery railway that carried coal to the harbour. You are walking through the original industrial landscape.
Glen Beach, south of the harbour, accessed via a zigzag ramp behind the harbour, is a narrower, rockier beach backed by cliffs and woodland. Glen Beach and Swallowtree Cove allow dogs year-round. It’s quieter than the main beach, and the rockier substrate concentrates glass more effectively. Most casual visitors don’t make it this far, which means the hunting here is consistently less picked-over.
Key Tip:
Start at the harbour as the tide falls and work the pebble pockets around the base of the harbour walls. Once you’ve covered the harbour margins, continue north towards Coppet Hall or south to Glen Beach, where fewer visitors search, and the glass is often less picked over.
Difficulty Level- Intermediate
- The most productive areas are revealed as the tide drops
- Success depends on targeting rocky and pebbly sections rather than the main sandy beach
- Several hunting zones are spread across different parts of the coastline
- Tide awareness improves access to Coppet Hall and the harbour margins
- Local knowledge helps identify the best glass-trapping features
Hunting Style – The Harbour Explorer
Saundersfoot rewards hunters who move between different environments. Search the harbour walls at low tide, follow the strandline after rough weather, and explore the quieter rocky sections north and south of the village. The best finds often come from hunting several connected locations rather than staying in one place.
Beach Personality
Saundersfoot is far more than a single beach. Historic harbour walls, former railway tunnels, hidden coves and quieter rocky shorelines combine to create one of the most varied hunting destinations on the Welsh coast. While most visitors stay on the main family beach, sea glass hunters quickly discover that the real opportunities lie around the harbour margins and the less-visited stretches towards Coppet Hall and Glen Beach. It’s a place where history, scenery and sea glass hunting come together beautifully.
Dog friendly?
Saundersfoot has seasonal restrictions on the main beach. Dogs are not permitted on the main beach between 1 May and 30 September, but are welcome at other times of the year. The Glen Beach at the far end of the harbour is dog-friendly all year round, and dogs should be kept on leads near the harbour area.
In practice, this makes Glen Beach the go-to for a hunting visit with your dog from May to September; it’s a better glass beach anyway, with rockier substrate and less footfall. Outside the restriction period, the full beach and harbour area is accessible. Wisemans Bridge Beach, a short coastal walk north of Saundersfoot, is dog-friendly all year with no seasonal restrictions and the walk between the two, through the coastal path tunnels, is one of the best short walks in Pembrokeshire.
For a post-hunt drink with a wet dog, the Wisemans Bridge Inn is a fifteen to twenty-minute walk north through the tunnels or a five-minute drive. The pub is open every day of the year, has free parking, and is dog-friendly in the bar and on the beach garden. Check our Yappy Places listing for Saundersfoot for more dog-friendly options in the village itself.
Practical information
Parking: The Harbour Car Park (SA69 9EJ) is directly adjacent to the beach and harbour – the most convenient for a hunting visit. There is a large car park on the harbour with spaces for 370 cars.
The Regency Car Park and Coppet Hall Car Park (through the tunnel at the end of The Strand) are further options. All charge in season. Arrive early in summer, the village is popular, and the harbour car park fills quickly on good weather days. Winter parking is easier and usually cheaper.
Toilets: Public toilets adjacent to the beach and harbour area, near the slipway. Generally well-maintained for a resort beach.
Food and drink: Saundersfoot punches well above its size. The harbour and village have a good selection of cafés, restaurants and pubs, several with outdoor seating overlooking the beach and harbour. Most are dog-friendly outside the main dining areas.
For a proper post-hunt stop with your dog, the walk north through the tunnels to the Wisemans Bridge Inn, right on the beach, with real ales and a dog-friendly bar, is one of the better ends to a Pembrokeshire hunting day.
Getting there without a car: Saundersfoot has a railway station on the South Wales Main Line, served by Transport for Wales with connections from Swansea and Cardiff. The station is around one mile from the beach. The walk into the village is straightforward. Bus connections also run from Tenby and Pembroke.
Accessibility: The main beach has a concrete slipway giving good access from the harbour car park level down to the sand, one of the more accessible beach entrances in Pembrokeshire. The harbour area is flat and paved. Glen Beach involves a zigzag ramp descent. The Coppet Hall direction involves walking along the beach at low tide and passing through the coastal path tunnels, which are short and level.
What to bring
- Sturdy walking shoes or wellies – the harbour margins and rocky sections are uneven and slippery at low tide; Glen Beach has an irregular rocky foreshore
- A bag or tin for finds – glass at Saundersfoot can include well-tumbled older pieces alongside more recent material
- A hand rake for working pebble pockets around the harbour walls
- Layers -Carmarthen Bay is exposed, and the easterly winds that produce the best glass conditions are also cold
- A tide table the harbour drains completely at low water, and the window either side of low tide is when the productive ground is accessible
- Enough time for the Coppet Hall walk, the tunnel section, and the beach beyond rewards a longer visit
The history behind the glass
Evidence of coal mining around Saundersfoot goes back to at least the fourteenth century, when local seams were worked from various points along the coast and the coal simply loaded onto boats from the beach. For four hundred years before the harbour was built, this was already an industrial coastline.
The modern story begins in 1829. An Act of Parliament in 1829 authorised the Saundersfoot Railway and Harbour Company to build a harbour and railways connecting to collieries, brickworks and ironworks. The railway opened in 1834 and within a few years comprised a small network of over four miles, running along the coast from Saundersfoot to Wisemans Bridge and on to the collieries at Stepaside and Kilgetty.
This was a remarkable piece of engineering for its time, horse-drawn wagons on narrow gauge track running through tunnels cut directly through the Pembrokeshire clifftops to reach the harbour, where the coal was loaded into waiting vessels for export.
By 1837, the harbour had five jetties handling coal, iron ore, pig iron and firebricks from local companies and mines. At its peak, Saundersfoot was one of the most productive anthracite ports in Wales, a small harbour punching well above its size, with constant vessel movements, a resident working population, and all the domestic and industrial waste that came with a century of that kind of activity.
The scale of the operation is hard to picture now. The railway ran through three tunnels that are still there now, walked by tourists on the Wales Coast Path, their walls still carrying the soot marks from the locomotives that replaced the horses in the 1870s. The route of the old colliery railway has created one of the most fascinating sections of the Pembrokeshire Coast Path. The Strand in the village was once Railway Street. The harbour walls were built for coal ships, not pleasure boats.
The railway remained independent until it closed in 1939. The last pit closed in 1939, and the village shifted to tourism, which has sustained it ever since. But over a hundred and ten years of industrial harbour activity had already done its work on the foreshore.
The glass that washes up at Saundersfoot today, medicine bottles and spirits from the mining communities in the valley above, provisions jars from the ships’ stores, domestic breakage from generations of harbour workers and their families, is the slow residue of that long industrial life. It doesn’t announce itself like Seaham. But it is there, and it is old, and the harbour walls that concentrated it for over a century are still standing.
From beach to jewellery
Found something worth keeping on the Saundersfoot shingle? At Mermaid Tears, every piece starts exactly where you’re standing, Sea Glass hand-hunted from UK beaches and handmade into something lasting. Browse the collection
Disclaimer: Tide times, dog restrictions, parking charges and beach conditions change regularly. Always verify before visiting. Saundersfoot’s seasonal dog restrictions are reviewed annually. Always check the current rules with Pembrokeshire County Council before visiting with a dog. The harbour is tidal and drains completely at low water; always check tide times before visiting.
Last updated: May 2026
Frequently asked questions
Is Saundersfoot good for sea glass? Yes – reliably so, particularly around the harbour margins, the pebble sections near the harbour walls at low tide, and along Glen Beach south of the harbour. The main sandy central beach is less productive, but the rocky and pebble-substrate areas concentrate glass well. The coal port history means material has been accumulating here for well over a century, and the finds reflect that varied, well-tumbled, and occasionally surprising in colour.
When is the best time to visit Saundersfoot for sea glass? Low tide, ideally after easterly or southeasterly weather, in the October to March window when the beach is less visited, and storms are more frequent. The harbour drains completely at low water, exposing the productive margins around the harbour walls. A two-hour window either side of the low is when the best ground is accessible.
Are dogs allowed at Saundersfoot? Dogs are banned from the main beach between 1 May and 30 September. Glen Beach, south of the harbour, is dog-friendly all year. Outside the restriction period, the full beach and harbour area is accessible. Wisemans Bridge Beach, a fifteen-minute coastal walk north through the tunnels, is unrestricted all year. Always verify current restrictions with Pembrokeshire County Council before visiting.
What are the coastal path tunnels at Saundersfoot? Three short tunnels north of the harbour, excavated in the 1830s for the colliery railway that carried coal to the harbour. They are the only tunnels on the entire 870-mile Wales Coast Path. Walking through them to Coppet Hall and Wisemans Bridge is one of the better short walks in Pembrokeshire and adds a second productive beach to the same visit.
Can I walk to Wisemans Bridge from Saundersfoot? Yes – the Wales Coast Path runs through all three tunnels and takes around fifteen to twenty minutes to reach Wisemans Bridge. The beach there is dog-friendly all year, the substrate is rockier and tends to hold glass well, and the Wisemans Bridge Inn, right on the beach, is one of the better post-hunt pubs in the area. It makes a natural second stop on a Saundersfoot hunting day.
Is Saundersfoot worth visiting in winter? For sea glass hunting, winter is the best season. The beach is quieter, easterly storms regularly refresh the strandline, and the low-tide windows in the shorter days are easier to plan around. The village is less busy but still has food and facilities open year-round. The coastal walk through the tunnels to Wisemans Bridge in January, with the bay to yourself and your dog charging ahead, is one of the better days you can have in South Wales.
